Australia’s Top Ten lists were developed from over 1500 opportunities identified by participants in the Energy Efficiency Opportunities (EEO) program (closed 29 June 2014). These were consolidated by technology or practice type, resulting in 33 technologies and 30 practices assessed using methodology from the IPEEC Top Tens Task Group.

The assessment methodology is based on an internationally agreed approach, taking a range of factors into account. The data used in the assessment is sourced primarily on industry’s responses under the EEO program, as well as data from the Australian Bureau of Statistics regarding sectoral growth and gross industry value. The indicators used in both the technology and the practices assessments are described in the tables below.

Table 1. Assessment indicators for the best available technologies

Indicator Description Weighting
1. Energy saving potential   Subtotal
1.1 Level of energy efficiency The percentage of energy saved by each technology, compared to the other technologies in the assessment. 15% 35%
1.2 Market prospect Judgement of the potential for future take-up, compared with current application. 10%
1.3 Energy saving potential Energy saving potential for the technology under both current and future application scenarios, based on market prospects addressed above. 10%
2. Technical practicality
2.1 Innovative or advanced nature Judgement as to the innovative or advanced nature of the technology. 25% 35%
2.2 Reliability Judgement as to the reliability of the technology. 10%
3. Economic characteristics  
3.1 Investment Investment $ per unit energy saved (GJ). 10% 25%
3.2 Payback period Payback period, with <2 years achieving full 10%. 10%
3.3 % of industry $ gross added value The investment to implement the technology, as a percentage of the industry sector gross added value. 5%
4. Social characteristics Benefits to energy supply, employment, climate change and sustainable development. 5% 5%

Table 2. Assessment indicators for the best practices.

Indicator Description Weighting
1. Energy saving and cost achievement
1.1     Energy saving Energy saving in GJ, percentage of energy reduction of the total process consumption and continuity of the savings in years. 15% 35%
1.2 Cost effectiveness Investment in $AUD, percentile rank of the investment compared with other entries, and payback period. 10%
1.3 Prospect Percentage of sector energy use for practice, based on judgement. As well as judgement of the potential for future take-up, compared with current application. 10%
2. Market contexts
2.1 Sector energy savings Energy savings for the practice extrapolated across relevant sectors based on the prospects identified above. 10% 20%
2.2 % of Industry $ gross added value The investment as a proportion of industry gross added value, ranked across all entries. 10%
3. Originality and innovation
3.1 Originality Judgement as to the level of originality of the practice. 10% 20%
3.2 Innovation Judgement as to the degree that the practice can be considered innovative. 10%
4. Transferability / replicability
4.1 General applicability Judgement as to the general versatility, replicabity in other areas of the same factory/other factories, or in other sectors/areas. 5% 15%
4.2 Ease of implementation Ease of equipment procurement, maintenance including parts procurement, and/or ease of introduction of the practice. 5%
4.3 Ability to integrate external resources The ability of commercialisation, the ability to obtain political support, and/or the ability to leverage private sector expertise to facilitate execution and promotion of the practice. 5%
5. Co-benefits
5.1 Environmental Reduction in CO2 equivalent (CO2e), reduction in other wastes or pollutants. 7% 10%
5.2 Social awareness Whether implementation of the practice is likely to improve awareness around energy saving, environmental protection or health and safety. 3%

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